esearch team finds wild medaka engage in surprisingly active nocturnal behavior in their natural river environment.

The lake has space for many more fish cages. Yet Tropo is one of only a few big fish farms in west Africa. Despite its large ...

Ambae islanders combine their ecological observations with scientific data to develop an early-warning system to predict ...

There are lots of bacteria in your fish tank. And, for the most part, this bacteria goes a long way in stabilizing water parameters and ensuring your underwater environment thrives. Unfortunately, ...

Betta fish, or Siamese fighting fish, are among the most captivating aquatic pets. With their striking colors, graceful fins, ...

Choosing the right substrate is one of the most common challenges beginner aquarists face. With so many options, it can be ...

In the century that followed, the snakehead was caught and identified a handful of times, sometimes mistaken for other ...

A solitary sunfish at an aquarium in southwestern Japan lost its appetite, began banging into the side of the fish tank and appeared unwell days after the facility closed last month for renovations.

(Kaikyokan via AP) TOKYO (AP) — A solitary sunfish at an aquarium in southwestern Japan lost its appetite, began banging into the side of the fish tank and appeared unwell days after the facility ...

When the sunfish began looking unwell days after the aquarium closed on December 1 for a six-month renovation, its keepers suspected digestive problems, gave it less food and visited the fish tank ...

Likewise, the Kaikyokan Aquarium’s listless fish has long been the sole occupant of its tank. But what sets sunfish apart from many other solitary creatures is that they are often stimulated by ...

The fish became unwell when the Kaikyokan aquarium where it lives in Shimonoseki, southern Japan, was temporarily closed for renovations in December. It refused to tuck into its usual jellyfish ...